Scientific Reports of the National University of Life and Environmental Sciences of Ukraine

The article presents the results of the study of the influence of laser irradiation on the development of vegetative mycelium and the period of occurrence of the corcules of the fruit bodies of F. velutipes. Irradiation of the micellium was carried out using LED lasers: BRP–3010–5 with a radiation of a red spectrum with a wavelength of 635 nm, BBP–3010–5 with a radiation of a blue spectrum with a wavelength of 405 nm and BGP–3010–5 with a radiation of a green spectrum with length waves of 532 nm. The irradiation energy in all variants of the experiment was within the range of 25 – 102,5 mJ/cm2 . It was established that laser irradiation affects the growth processes of F. velutipes. So, the strongest light reaction in response was observed on the action of the blue light spectrum for 5 seconds. Under this irradiation regime, the radial growth rate of mycelium increased by 55,5%. During the action of laser irradiation of the mycelium with green light for 10 sec, the growth rate of the mycelium increased by 53,7%. The formation of the embryos of fruiting bodies began 4-5 days earlier when blue light was used to stimulate growth processes, 3 days red and 2 days green. The largest number of primordia of fruiting bodies was formed due to the action of laser irradiation of the mycelium with blue light for 5 seconds, this figure was 93,4% higher than the control. As a result of the studies, it was found that laser irradiation affects the growth processes of F. velutipes. Stimulating the growth processes of basidiomycetes is important during cultivation, since a significant increase in the growth rate of vegetative mycelium can reduce the time of substrate fouling with mycelium, accelerate the formation of primordia of fruiting bodies and fruiting. In addition, the best growth of mycelium reduces the likelihood of infection with its pathogenic microflora and improves adaptive properties, which makes the use of LED lasers promising for the cultivation of basidium fungi

basidicum mushrooms, laser irradiation, photoactivation